Electric connection plug



June 27, 1933. wo F 1,915,344

ELECTRIC CONNECTION PLUG Filed Jan. 27 1929 36 33 2 s 0 Kw 2 3 l:

3/ muasng-mmwmmw-mmqwa 3 2 F1 r3 5 l0 ARCHIE R. WOLFE INVENTOR ATTORNEY Patented June 27, 1933 7 i I UNITE .7 STATES PATENT QFFICE i ARCHIE nEx LnwoLrn, or sumivirn'nnw JERSEY ELECTRIC CONNECTION, PLUG I, Application filed June 27, 1929. Serial No. 374,199.

(GRANTED UNDER THE ACT or iinacii a, 1883, Asiiianmmn APRIL so, 1928; 370 0. G. 757) My invention relates to improvements in Similar numerals refer to similar parts non-screw electric light plugs adapted to enthroughout the several views. R p gage and make electrical connection to the The upper section 1, middle section 2, and standard screw rim electric light socket withlower sect on 3, of the insulation body are 5 out screwing the lat er or saidplug, and the clamped rigidly together by means of the tie 55 objects of said improvements are, first, to probolts 4, and 5, wh ch are secured by the Vide in a non-screw plug a means'for attachthreaded nuts 6, and respectively. The lating and detaching the screw rim of the stanch tcr are countersunk into the bottom of said ard screw rim electric light socket without Section 3. I r

w screwing the latter or said plug, and a sepa-- The cav ty 8, in sa d section 3, accommorate means for assuring electrical contact bedates the lower portions of the reverse acting tween the center contact of said plug and the Sprung jaws 9, and 10, the lower ends of whi h center contact of said socket by vertically eleare rigidly affixed to the vertical guide 11. vating said attaching and detaching means The lower end of the latter pro ects into the 15 before the latter can be attached-to said screw cavity 12, andis limited to vertical movement 65 rim and by vertically lowering or depressing Wlth sp t t sald body. I by spring force said attaching and detachin Said Jaws 9, and i0, proJect upward means after the latter has been attached to thrPugh the apertures a m, r p ve said screw rim; second, to provide in a non- 13, 111 metal pl 15,W h1ch COUIlteT- 0 screw l t ic plug means f receiving sunk into the upper end of said section 8, and engaging d l t i u connecting t is secured 1n place oy means of the tie bolts standard electric light plug attachment; and 3' Clamp p l y third, to produce a non-screw electric plug 1 ngs a and TesPeCt1Ve1Y,l)etWeeI1 readily designed to be equipped with terminal Smd Sectlon 2, and bedplate W bolts 75 posts and a bottom Cap for direct Connem &, and 5, pass through apertures in said bushtion to the terminal wires of portableelectrie ings and the apertures'lsfl and respective lamps, toasters, etc.; and fourth, to obviate in Said bedplate The de 3I6SS1I10 3 Drill is secured to the the necessity of one of the elements namely, l :3 1 7 the movable center contact, in a n on-screw bottom of smd bedplme and 1S depressed e 0 1 f L between the latter and the 1o1ned ends of the plug, described in my app ication or etters guide and p g j and thus Patent of the latter Serial No. 344,890, filed tending to keepvthe hitter in the depressed March 6, 1929. c

or lowered position. Said spring 20 is engi ig gg g g larged and provided with the slot 21, for p y m accommodating the spring ]3.W 10. And the is a plan view of the inner half or the device, Cavity 22, in Saidsection 3,, accommodates the enlarged portion of said spring 20.

Fig. 2, isa view of the upper side of the de- Pr t SPnng 1S "ertlcal The attachment spring 23, is secured to tlonal VleW P the W Q broken said bedplate 15, and projects into the at- 40 h i a Vertical tachment aperture 2 am said section 3. 90 f n the broken 1,1116 7 Theireciprocable sliding cams 25, and 26, g- 1S a 716W of h upper 51543 of the v ride upon said bedplate 15, project through l g a {incl 115s msulatlon handle the similar rectangular apertures 27, and 28,

5 a P Y showlng th metal in said jaws 9, and 10, respectively, and are bedp a c 1 i p c lathe pp e of h provided with the insulation handles 29, and lower SQQGIOII of the lnsuliltloll b y; g- 30, respectively, which project onthe outside 7, s a view otthe outer face of the-spring of said section 3, and with thestops 31, and yaw 9; Fig. 8, is a View of the bottom of the 32. respectively, which retain said cams 25. invent on; and Fig. 9 18 a perspective view and 26, in said apertures 27, and 28.

.50 of the interior members of the plug. v Said jaws 9, and 10, project upward 100 through apertures 33, and 34, respectively,

in said section 2, and into the slots 35, and

The. attachment..:spring 39, projects r the attachment aperture 40, insaid section 3, and is secured to the center contact 41, which projects downward through a central aperture in section 1, and is secured by the 1111942. I i

In the, practical operation of said plug, the insulated handles29, and 30, are simultaneously moved toward each other as far as they will go by a thumb and forefinger of one hand. This movement first actuates the cams 25, and 26, to engage the reverse acting spring jaws 9, and 10, elevating the latter a maximum distance against'the tensionof the spring 20, immediately after which said handles 29, and 30, collide with said jaws 9, and 10, moving the ribbed ends of the lat ter toward each other a maximum distance into the slots 35, and 36. The mechanism of said plug is now in position to be inserted in a socket as shown in Figs. 1, 3, 4i and S, and while in said position the tip or upper portion is inserted into the screw rim of any standard screw rim socket as far as it will go. Said handles 29, and'30 are then re- ,leased, which first permits the ribbed "or threaded ends of said jaws 9, and 10, to move outwardly by their. own spring tension into engagement with said screw rim, immediately after-which said spring 20, depresses said jaws 9, and 10, which forces said tip of said plug farther into the screw of said socket or until the center contact of the latter collides with and makes electrical contact with the center-contact 41, of said plug. Said handles 29, and 30, when released are moved outwardly or away from each other by said spring jaws 9, and 10, and the action of the latter on said cams 25, and 26.

One leg of the electric circuit through said plug is completed from the center contact tension of said first means.

ter contact rigidly mounted in said body,

laterally and longitudinally transitorily movable arms mounted in the body, and compressible means having an inclined surface engaging with said arms for moving them in said two directions.

2. In an electric connection, a body, a fixed center contact, laterally and longitudinally transitorily movable spring arms, means normally holding the arms in one of their longitudinal positions, reciprocally sliding cams for moving the arms longitudinally against the tension of said means, and means for operating the cams and moving the arms laterally.

3. In an electric connection, a body, a center contact mounted in the body, arms niovable laterally and longitudinally transitorily with' respect to said body mounted therein, meansnormally holding the arms in one of their longitudinal positions, and means for moving said arm's'laterally and at substantially the same ti ne moving them to another of their longitudinal positions against the 4; In an electric connection, a body, a center contact mounted therein, resilient arms having lateral and longitudinal transitory movement with respect to the body, said arms being held normally in an outer position by their resiliency, a spring for holding said arms in one of their longitudinal positions, means for moving said arms to another of their longitudinal positions, and means for moving said arms laterally against their outward tendency.

5. In an electrical connection, a body, a center contact mounted therein, laterally and longitudinally transitorily movable arms supported in the body, said arms being adapted to engage an attachment to be secured to said pln means for operating said arms, and means or moving the plug further into said attachment after the said first means has been released. I

ancnm REXALD WOLFE.

41, to the attachment spring 39. The other 5 1. In an electric connection, a body, a cenpayment to me of any a 

